• Title/Summary/Keyword: CSIRO

검색결과 154건 처리시간 0.029초

소모사 연신기술 이용 고감성 직물 개발 (Development of High Sensible Fabrics Using Worsted Yarn Drawing Technology)

  • 김승진;박경순;김진학;정기진;강지만;서옥교
    • 한국감성과학회:학술대회논문집
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    • 한국감성과학회 2003년도 춘계학술대회 논문집
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    • pp.14-18
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    • 2003
  • 국내 소모방 업체는 원료를 외국에서 수입하고 있기 때문에 wool 원료를 이용한 고감성 고기능성 제품 개발이 요구되고 있다. 또한 기존 제품은 국제 가격 경쟁력을 상실한 상태이므로 물성개전과 기능성을 향상시킨 획기적인 소재 개발이 요구되고 있는 실정이다. 최근 호주의 CSIRO 연구소에서 개발된 $\ulcorner$Optim$\lrcorner$$^{(R)}$ 은 광택이 뛰어난 모섬유 소재로서 국내에서 수입되어 고감성 의류용 직물로서 상품화가 되고 있다. 그러나 원료가격이 고가인 관계로 원료수금이 원활치 못한 실적이다. 본 연구에서는 생산원가가 저렴하며 50%까지 연신함으로써 광택은 물론 물세탁이 가능한 기능성을 부여할 수 있는 방적 소모사 상태에서 연신하는 기술을 개발하기 위한 최적 공정 조건을 결정하기 위한 실험을 실시하였고 이들 소모사를 이용한 직물의 의류물성을 분석하여 소모사 상태에서 연신기술을 응용한 광택이 우수한 고감성 직물을 개발하기 위해 연구를 수행하였다.

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Computation of dilute polymer solution flows using BCF-RBFN based method and domain decomposition technique

  • Tran, Canh-Dung;Phillips, David G.;Tran-Cong, Thanh
    • Korea-Australia Rheology Journal
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    • 제21권1호
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    • pp.1-12
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    • 2009
  • This paper reports the suitability of a domain decomposition technique for the hybrid simulation of dilute polymer solution flows using Eulerian Brownian dynamics and Radial Basis Function Networks (RBFN) based methods. The Brownian Configuration Fields (BCF) and RBFN method incorporates the features of the BCF scheme (which render both closed form constitutive equations and a particle tracking process unnecessary) and a mesh-less method (which eliminates element-based discretisation of domains). However, when dealing with large scale problems, there appear several difficulties: the high computational time associated with the Stochastic Simulation Technique (SST), and the ill-condition of the system matrix associated with the RBFN. One way to overcome these disadvantages is to use parallel domain decomposition (DD) techniques. This approach makes the BCF-RBFN method more suitable for large scale problems.

RESPONSES TO MONENSIN AND OESTRADIOL IN STEERS GRAZING TWO TROPICAL PASTURES IN N. E. QUEENSLAND

  • Jones, R.J.;Minson, D.J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제3권3호
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    • pp.183-186
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    • 1990
  • Monensin administered as a slow release capsule to Droughtmaster steers grazing mixed pastures containing Stylosanthes hamata or grass pastures fertilized with N, had no effect on growth rate over 111 day period. Monensin significantly increased the level of propionic acid (p<0.001) and decreased the level of butyric acid (p<0.01) in the rumen. The lack of response to monesin was partly attributed to the poor pasture conditions and growth rate of the steers during part of the experimental period. An implant of oestradiol improved growth rates during the period of poor forage quality and in the subsequent 56 days when pastures were of high quality following rain. Mean growth rates over the entire 157 days for control, monensin and monensin/oestradiol treatments were 0.37, 0.37 and 0.50 kg/d respectively. It was concluded that when pasture conditions are sufficient only for the maintenance of liveweight, production can be improved by an oestradiol implant but not by feeding an ionophore such as monensin.

호주와 ASCA공동주최 작물의 염해 및 한발에 대한 반응

  • 이은웅
    • 과학과기술
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    • 제11권4호통권107호
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    • pp.37-41
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    • 1978
  • 1977년 11월 21일부터 26일 가지 6일간에 걸쳐 호주 동남중부에 위치하는 Mildura 에서 표제에 대한 세미나가 호주정부와 Association for Science cooperation in asia(ASCA) 공동주최로 개최되었다. 필자는 농촌진흥청 작물개량연구사업소의 배려에 의하여 작물시험장 임무상연구관과 같이 참석하였으며, 이 기회에 Sydney 국립대학 및 CSIRO(the australian commonwealth scientific and industrial research organization)를 안병현박사의 안내로 돌아 볼 수 있는 기회를 갖게 되었으며 돌아오는 길에 필리핀 뇨스바 노스에 있는 국제미작연구소(IRRI)를 견학하였다. 여기에 본 세미나 내용을 소개하여 동학여러분에게 소개하고자하여 이 기회를 마련하여 주신 작물개량연구사업소 관계관과 우리를 안내하여 준 CSIRO의 가이생산과 연구책임을 맞고 있는 안박사에게 감사하고저 한다,

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EVALUATION OF THREE TROPICAL LEGUMES IN DIETS FOR GROWING RABBITS

  • Lowry, J.B.;Schlink, A.C.;Hoffmann, D.
    • Asian-Australasian Journal of Animal Sciences
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    • 제5권2호
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    • pp.257-259
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    • 1992
  • Three tropical legumes, very different in growth form, but believed to be of potential value for animal production were evaluated by substituting the leaf meal made from each for lucerne at the level used in a standard diet for growing rabbits (50%). Each leaf meal had a nitrogen content of close to 3.5% and contributed about 60% of the crude protein in the diet. Albizia lebbeck and Clitoria ternatea showed no evidence of toxic or antinutrient effects. The protein digestibility of the complete diets were 66 and 61% respectively, implying a protein digestibility of the leaf of at least 50%. Both species would be suitable for practical production diets for rabbits and should be excellent for ruminants. In contrast, the diet containing Desmanthus virgatus had a protein digestibility of only 40%, implying that only about 15% of the leaf protein was available. The leaves showed marked non-enzymic browning on drying. When dried this species is clearly unsuitable as a feed for rabbits and possibly also for ruminants. However, it may well be valuable as fresh forage.

양모의 저온 염색 소개 - Sirolan LTD Process from ICI (Low Temperature Dyeing Process by Intercellular diffusion through Cell Membrane Complex Modification of Wool. - Technology based on CSIRO and ICI)

  • 윤일남
    • 한국염색가공학회:학술대회논문집
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    • 한국염색가공학회 2001년도 추계학술발표회 논문집
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    • pp.3-11
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    • 2001
  • Fundamental studies at the CSIRO division of Wool technology and ICI on the diffusion of dyes into wool〔1,2〕have let to development of a new approach to wool dyeing. In this method, the cell membrane complex of wool is modified before dyeing by treatment under mildly alkaline conditions with a special chemicals. Wool pretreated with ethoxylated quaternary ammonium salt has an increased rate of dyebath exhaustion and dye penetration early in the dyeing cycle. This enables the treated material to be dyed below the boil for a similar time to the conventional cycle. This technique can be used on untreated and shrinkresist-treated wool and wool/nylon blends. In addition to good macro-levelness and excellent coverage of tippiness, the low temperature dyeing process give higher exhaustion levels of dyestuffs and insect-resist agent and hence cleaner effluent liquors, compared with conventional dyeing process. Low Temperature Dyeing process cause significantly less fiber damage than conventional way. The reduction in damage is reflected in improved processing performance of the dyed wool.

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Steel Corrosion Map of Vietnam

  • Cole, Ivan;Corrigan, Penny;Nguyen, Viet Hue
    • Corrosion Science and Technology
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    • 제11권4호
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    • pp.103-107
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    • 2012
  • In the framework of an International cooperation program in Australia-Asia, the atmospheric corrosion of metals in five nations located in this tropical zone: Australia, Vietnam, Thailand, Philippines and Indonesia was investigated. In this program, mild steel, zinc and copper were tested on a set of sites, representative for different climatic conditions: severe marine, marine, industrial, urban and rural, simultaneously with the collection of climatic parameters and pollutants. Based on the data obtained in the Program and referring to the bank of data collected in the Vietnam National Projects, modeling was used to construct a corrosion map of steel for Vietnam. The correlation of the data derived from the map compared with those from National Projects is very high, in most cases, differing by less than 2-3%.

Temperature change around a LNG storage predicted by a three-dimensional indirect BEM with a hybrid integration scheme

  • Shi, Jingyu;Shen, Baotang
    • Geosystem Engineering
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    • 제21권6호
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    • pp.309-317
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    • 2018
  • We employ a three-dimensional indirect boundary element method (BEM) to simulate temperature change around an underground liquefied natural gas storage cavern. The indirect BEM (IBEM) uses fictitious heat source strength on boundary elements as basic variables which are solved from equations of boundary conditions and then used to compute the temperature change at other points in the considered problem domain. The IBEM requires evaluation of singular integration for temperature change due to heat conduction from a constant heat source on a planar (triangular) region. The singularity can be eliminated by a semi-analytical integration scheme. However, it is found that the semi-analytical integration scheme yields sharp temperature gradient for points close to vertices of triangle. This affects the accuracy of heat flux, if they are evaluated by finite difference method at these points. This difficulty can be overcome by a combination of using a direct numerical integration for these points and the semi-analytical scheme for other points distance away from the vertices. The IBEM and the hybrid integration scheme have been verified with an analytic solution and then used to the application of the underground storage.